BILLINGS, Mont. (AP) — Exxon Mobil Corp. said Friday it expects to incur costs of about $135 million from an oil pipeline break beneath Montana's Yellowstone River that triggered a massive effort to limit damage to the scenic waterway.
The cost figure was released in response to a request from The Associated Press and is more than triple an earlier estimate. It includes for the first time the expense of replacing the section of broken pipeline with a new one buried more deeply beneath the river.
The company's 20-year-old Silvertip crude oil pipeline broke July 1 during severe flooding.
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Horizontal directional drill" refers to the process the company used to bore a new route for the pipeline dozens of feet beneath the riverbed. That move was mandated by federal pipeline regulators.
The original pipeline was buried only a few feet beneath the river. State and federal officials have speculated that summer flooding scoured the riverbed and left the pipe exposed to damaging debris and the force of the rushing river. ..cont'd
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